Official quote posts are in the latest beta version of Ivory on Testflight for Mac and iOS.
We've also made some improvements to fetching more post data which includes like/boost counts and replies. When going to a post detail, you'll see a loading bar in the top right corner which shows that Ivory is attempting to load more data if available.
If you are currently helping us test Ivory, we'd love for you to give it all a try. Thank you!